Volume 16, Number 12—December 2010
Dispatch
Online Flutracking Survey of Influenza-like Illness during Pandemic (H1N1) 2009, Australia
Table
Peak ILI attack week and attack rates across influenza surveillance systems in New South Wales, Australia, 2007–2009*
Surveillance system/weekly measure used | Peak week of ILI (week ending) |
Peak ILI/influenza-related values |
|||||
---|---|---|---|---|---|---|---|
2007 | 2008 | 2009 | 2007 | 2008 | 2009 | ||
Flutracking, fever and cough rate, % | Aug 5 | Aug 24 | Jul 12 | 9.4 | 5.8 | 6.8 | |
No. laboratory notifications | Aug 5 | Aug 31 | Jul 12 | 133 | 69 | 1,167 | |
No. ED ILI visits |
Aug 19 |
Aug 31 |
Jul19 |
374 |
170 |
1,024 |
|
Google Flu Trends | |||||||
Influenza-related search term counts |
Jul 22 |
Aug 31 |
Jul 12 |
1,933 |
1075 |
1,022 |
|
Workplace absenteeism, weekly rate, % | Jul 15 | ND | Jul 19 | 1.5 | ND | 1.4 | |
ASPREN, ILI/1,000 consultations, % | Aug 12 | Sep 7 | Jul 19 | 73.7 | 62.8 | 74.3 |
*ILI, influenza-like illness; ED, emergency department; ND, no data collected; ASPREN, Australian Sentinel Practice Research Network.